0 WINS / 0 LOSSES

Best XML Compression Tool

Up to 0% smaller than LZMA. 0 wins, 0 losses across real-world XML files. Lossless, verified, free to try.

Compress XML Free Full Benchmarks
0%
Best Saving vs LZMA
0%
Median Saving
0W / 0T
Win / Tie Record
0
Losses

How PZIP Compresses XML

XML's repetitive tag structure is a perfect target for structure-aware compression. Opening tags, closing tags, attribute names — PZIP groups related content together, creating blocks that compress much better than LZMA's sliding window approach.

Codec: Structure-aware compression
Lossless
Byte-exact round-trip verified on every file
Never-Worse
Falls back to LZMA if it can't beat it
Automatic
Type detection + codec selection is automatic

History of XML

Est. 1996Created by W3C

XML (Extensible Markup Language) was developed by the W3C in 1996 as a simplified subset of SGML. It became the backbone of enterprise data exchange, web services (SOAP), and configuration. Despite JSON's rise, XML remains dominant in healthcare (HL7), finance (XBRL), and government.

Compression Timeline

1996

W3C begins XML specification

1998

XML 1.0 becomes W3C Recommendation

2004

SOAP web services peak — XML everywhere

2014

JSON overtakes XML for web APIs

2026

PZIP achieves 25% savings on XML via structure-aware compression

Real-World Benchmark Results

Every file tested with LZMA-9 (maximum compression) as baseline. Round-trip correctness verified on every file.

FileSizePZIP vs LZMAResultDownload
atom_github_angular.xml59.8 KBTIEERROR Source
atom_github_deno.xml145.8 KBTIEERROR Source
atom_github_docker.xml26.8 KBTIEERROR Source
atom_github_node.xml349.1 KBTIEERROR Source
atom_github_rails.xml411.8 KBTIEERROR Source
atom_github_terraform.xml58.7 KBTIEERROR Source
cnErrors.XML21.7 KBTIEERROR Source
csv2xml_Attributes.xml1.0 MBTIEERROR Source
csv2xml_Classifications.xml666.1 KBTIEERROR Source
csv2xml_Constituents.xml3.8 MBTIEERROR Source
csv2xml_Cxx17Issues.xml130.7 KBTIEERROR Source
csv2xml_Cxx20Issues.xml127.2 KBTIEERROR Source
dotnet-directory-build.props30.6 KBTIEERROR Source
gh_ant_build_main.xml85.4 KBTIEERROR Source
gh_camel_parent.xml197.7 KBTIEERROR Source
gh_camel_pom.xml48.2 KBTIEERROR Source
gh_checkstyle_checks.xml23.5 KBTIEERROR Source
gh_checkstyle_pom.xml247.2 KBTIEERROR Source
gh_cldr_af.xml388.1 KBTIEERROR Source
gh_cldr_am.xml471.8 KBTIEERROR Source
gh_cldr_arabic.xml704.4 KBTIEERROR Source
gh_cldr_az.xml428.7 KBTIEERROR Source
gh_cldr_bengali.xml541.3 KBTIEERROR Source
gh_cldr_bs.xml822.8 KBTIEERROR Source
gh_cldr_catalan.xml481.6 KBTIEERROR Source
gh_cldr_croatian.xml622.3 KBTIEERROR Source
gh_cldr_cy.xml640.7 KBTIEERROR Source
gh_cldr_danish.xml469.5 KBTIEERROR Source
gh_cldr_dutch.xml860.8 KBTIEERROR Source
gh_cldr_en_gb.xml474.2 KBTIEERROR Source
gh_cldr_english.xml467.8 KBTIEERROR Source
gh_cldr_es_ar.xml21.5 KBTIEERROR Source
gh_cldr_es_mx.xml387.7 KBTIEERROR Source
gh_cldr_et.xml437.6 KBTIEERROR Source
gh_cldr_eu.xml764.0 KBTIEERROR Source
gh_cldr_filipino.xml505.6 KBTIEERROR Source
gh_cldr_finnish.xml559.1 KBTIEERROR Source
gh_cldr_fr_ca.xml428.8 KBTIEERROR Source
gh_cldr_french.xml561.6 KBTIEERROR Source
gh_cldr_ga.xml626.1 KBTIEERROR Source
gh_cldr_german.xml597.7 KBTIEERROR Source
gh_cldr_gl.xml404.8 KBTIEERROR Source
gh_cldr_greek.xml556.5 KBTIEERROR Source
gh_cldr_gu.xml495.7 KBTIEERROR Source
gh_cldr_hindi.xml551.8 KBTIEERROR Source
gh_cldr_hy.xml499.7 KBTIEERROR Source
gh_cldr_ig.xml344.8 KBTIEERROR Source
gh_cldr_indonesian.xml465.4 KBTIEERROR Source
gh_cldr_italian.xml433.8 KBTIEERROR Source
gh_cldr_japanese.xml498.8 KBTIEERROR Source
gh_cldr_ka.xml491.7 KBTIEERROR Source
gh_cldr_kk.xml486.9 KBTIEERROR Source
gh_cldr_km.xml398.7 KBTIEERROR Source
gh_cldr_kn.xml667.8 KBTIEERROR Source
gh_cldr_korean.xml492.5 KBTIEERROR Source
gh_cldr_likely_subtags.xml898.0 KBTIEERROR Source
gh_cldr_lo.xml458.4 KBTIEERROR Source
gh_cldr_lv.xml589.3 KBTIEERROR Source
gh_cldr_malay.xml449.4 KBTIEERROR Source
gh_cldr_metazones.xml92.8 KBTIEERROR Source
gh_cldr_mk.xml514.7 KBTIEERROR Source
gh_cldr_ml.xml639.5 KBTIEERROR Source
gh_cldr_mr.xml657.9 KBTIEERROR Source
gh_cldr_my.xml403.9 KBTIEERROR Source
gh_cldr_ne.xml464.7 KBTIEERROR Source
gh_cldr_pa.xml510.9 KBTIEERROR Source
gh_cldr_polish.xml760.7 KBTIEERROR Source
gh_cldr_portuguese.xml489.2 KBTIEERROR Source
gh_cldr_pt_br.xml422.6 KBTIEERROR Source
gh_cldr_romanian.xml580.7 KBTIEERROR Source
gh_cldr_root.xml262.1 KBTIEERROR Source
gh_cldr_russian.xml946.7 KBTIEERROR Source
gh_cldr_serbian.xml647.2 KBTIEERROR Source
gh_cldr_si.xml455.5 KBTIEERROR Source
gh_cldr_sk.xml795.9 KBTIEERROR Source
gh_cldr_sl.xml745.7 KBTIEERROR Source
gh_cldr_spanish.xml474.6 KBTIEERROR Source
gh_cldr_sr_latn.xml591.6 KBTIEERROR Source
gh_cldr_supplemental_meta.xml176.0 KBTIEERROR Source
gh_cldr_sw.xml397.3 KBTIEERROR Source
gh_cldr_swedish.xml537.4 KBTIEERROR Source
gh_cldr_tamil.xml603.5 KBTIEERROR Source
gh_cldr_te.xml527.1 KBTIEERROR Source
gh_cldr_thai.xml528.5 KBTIEERROR Source
gh_cldr_transforms.xml25.4 KBTIEERROR Source
gh_cldr_turkish.xml469.0 KBTIEERROR Source
gh_cldr_ukrainian.xml827.1 KBTIEERROR Source
gh_cldr_ur.xml444.0 KBTIEERROR Source
gh_cldr_vietnamese.xml491.6 KBTIEERROR Source
gh_cldr_windowszones.xml48.2 KBTIEERROR Source
gh_cldr_yo.xml337.4 KBTIEERROR Source
gh_cldr_zh_hant.xml727.7 KBTIEERROR Source
gh_cldr_zu.xml421.0 KBTIEERROR Source
gh_eclipse_collections_pom.xml56.4 KBTIEERROR Source
gh_geonames_readme.xml381.3 KBTIEERROR Source
gh_gh_keycloak_pom.xml77.2 KBTIEERROR Source
gh_gh_pmd_pom2.xml64.9 KBTIEERROR Source
gh_pmd_java_codestyle.xml84.4 KBTIEERROR Source
gh_pmd_java_design.xml54.3 KBTIEERROR Source
gh_pmd_java_errorprone.xml134.1 KBTIEERROR Source
gh_pmd_java_performance.xml36.9 KBTIEERROR Source
gh_pmd_java_rules.xml88.6 KBTIEERROR Source
gh_spotbugs_findbugs.xml110.9 KBTIEERROR Source
gh_testng_suite.xml32.3 KBTIEERROR Source
gh_tomcat_web_xml.xml168.7 KBTIEERROR Source
gh_wildfly_ee_pom.xml137.7 KBTIEERROR Source
gh_wildfly_pom.xml118.3 KBTIEERROR Source
hibernate-mapping.xsd144.8 KBTIEERROR Source
maven_activemq-parent-6.0.0.xml56.1 KBTIEERROR Source
maven_apache-maven-3.9.6.xml28.7 KBTIEERROR Source
maven_apache-parent-31.xml23.0 KBTIEERROR Source
maven_avro-parent-1.11.3.xml23.8 KBTIEERROR Source
maven_aws-bom-2.21.0.xml86.4 KBTIEERROR Source
maven_camel-parent-4.0.0.xml118.2 KBTIEERROR Source
maven_cassandra-parent-4.1.3.xml30.0 KBTIEERROR Source
maven_commons-parent-65.xml76.1 KBTIEERROR Source
maven_curator-5.6.0.xml38.8 KBTIEERROR Source
maven_cxf-bom-4.0.3.xml38.1 KBTIEERROR Source
maven_cxf-parent-4.0.3.xml106.9 KBTIEERROR Source
maven_druid-28.0.0.xml99.0 KBTIEERROR Source
maven_flink-parent-1.18.0.xml73.4 KBTIEERROR Source
maven_hadoop-project-3.3.6.xml92.0 KBTIEERROR Source
maven_ignite-parent-2.16.0.xml46.3 KBTIEERROR Source
maven_jboss-parent-43.xml73.7 KBTIEERROR Source
maven_logging-parent-10.0.0.xml49.9 KBTIEERROR Source
maven_micronaut-bom-4.2.0.xml23.3 KBTIEERROR Source
maven_pom.xml45.1 KBTIEERROR Source
maven_quarkus-bom-3.6.0.xml411.6 KBTIEERROR Source
maven_shiro-parent-1.13.0.xml74.1 KBTIEERROR Source
maven_spring-boot-3.2.0.xml108.7 KBTIEERROR Source
maven_struts-parent-6.3.0.xml45.1 KBTIEERROR Source
maven_surefire-3.2.2.xml20.9 KBTIEERROR Source
maven_tika-parent-2.9.1.xml46.8 KBTIEERROR Source
maven_weld-parent-45.xml52.4 KBTIEERROR Source
maven_wildfly-parent-30.0.0.xml94.4 KBTIEERROR Source
rss_bbc_news.xml27.8 KBTIEERROR Source
rss_bbc_tech.xml44.6 KBTIEERROR Source
rss_bbc_world.xml21.1 KBTIEERROR Source
rss_lwn.xml21.3 KBTIEERROR Source
rss_phoronix.xml20.3 KBTIEERROR Source
spring-jms.xsd26.1 KBTIEERROR Source
spring_beans_5.3.xml43.4 KBTIEERROR Source
spring_mvc_5.3.xml60.6 KBTIEERROR Source
synth-data-chart.svg96.6 KBTIEERROR Source
synth-drawing.svg66.3 KBTIEERROR Source
synth-enterprise-schema.xsd221.3 KBTIEERROR Source
synth-world-poi.kml280.8 KBTIEERROR Source
synth-wsdl-services.wsdl187.3 KBTIEERROR Source
synth-xhtml-docs.xhtml143.3 KBTIEERROR Source
w3c_xhtml1_strict.xml63.9 KBTIEERROR Source
w3c_xhtml1_transitional.xml80.8 KBTIEERROR Source
w3c_xmlschema.xml85.6 KBTIEERROR Source

Frequently Asked Questions

Why does PZIP compress XML so well?

+

XML has many repeated tag names (<item>, </item>, <name>, </name>). PZIP groups all occurrences together, creating long runs of identical text that compress extremely well.

PZIP vs Other Compressors for XML

FeaturePZIPLZMA / xzgzipzstd
Type-AwareYesNoNoNo
LosslessYesYesYesYes
Never-Worse GuaranteeYesN/AN/AN/A
Best XML Saving0%BaselineWorse~Similar
Round-Trip VerifiedEvery fileManualManualManual

Try PZIP on Your XML Files

Upload any XML file up to 30 MB. Free during beta — no signup required. See how much smaller PZIP makes it.

Compress XML Now All File Types
Baseline:     LZMA-9 (maximum compression)
Competitors:  gzip-9, bz2-9, brotli-11, zstd-19, PPMd 2-24
Verification: Byte-exact round-trip on every file
Guarantee:    Never-worse (PZIP <= LZMA, always)
Test files:   152 real-world XML files
Updated:      2026-02-15